Why earthing of the Neutral of the substation transformer

neutral of transformer is connected to earth

It is very important to do earthing of the neutral of the substation transformer. You will learn, what are the problems if there is no earthing in the transformer.

I will explain, how the high voltage comes in the transformer without earthing during fault. I will also suggest a very simple DIY project to learn problems.

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Why use Neutral in three-phase induction motor in VVFD

Why to use neutral in induction motor

We will discuss the need, advantage, and use of neutral in a three-phase induction motor in the complex VVVF (Variable voltage variable frequency) drive system.

You will learn how the use of neutral in an induction motor can make fault finding easy and improve protection and the reliability of the system

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Zener Diodes in series and parallel connections, calculation

Series parallel connection of Zener didoe

In this post, you will learn the concept of the connections of the Zener diode in series and parallel. I explain the total voltage and power calculation in different combinations.

I will also explain the difference between theoretical and practical values of the voltage and current distribution, and also the total useful watts of the Zener didoes.

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Difference between Neutral and Earth – 17 differences

difference between neutral and earth wire

I will explain the difference between neutral wire and earth in the AC supply in this technical article. A total of 17 differences between neutral and earth are discussed in this article.

The three-phase AC supply consists of 4 wires. R phase, Y phase, B phase wire, and a neutral wire. In addition to that, we have earth wire also. The neutral wire and earth wire of the AC supply have totally different purpose.

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